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| author | Natanael Copa <ncopa@alpinelinux.org> | 2017-05-30 14:23:24 +0200 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2017-05-31 21:54:22 -0400 |
| commit | 179766aa2ef06df854bc1d9616bf6f00ce49b7f9 (patch) | |
| tree | f74f16db37624f8712a8eac90e0c190d6557564c /src/ctype | |
| parent | 1c497005ee58fd237646a49231b73fd3ea79e2d5 (diff) | |
| download | musl-179766aa2ef06df854bc1d9616bf6f00ce49b7f9.tar.gz musl-179766aa2ef06df854bc1d9616bf6f00ce49b7f9.tar.xz musl-179766aa2ef06df854bc1d9616bf6f00ce49b7f9.zip | |
towupper/towlower: fast path for ascii chars
Make a fast path for ascii chars which is assumed to be the most common case. This has significant performance benefit on xml json and similar
Diffstat (limited to 'src/ctype')
| -rw-r--r-- | src/ctype/towctrans.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/ctype/towctrans.c b/src/ctype/towctrans.c index 6af61875..cf13a862 100644 --- a/src/ctype/towctrans.c +++ b/src/ctype/towctrans.c @@ -1,3 +1,4 @@ +#include <ctype.h> #include <wctype.h> #include "libc.h" @@ -9,7 +10,6 @@ static const struct { signed char lower; unsigned char len; } casemaps[] = { - CASEMAP('A','Z','a'), CASEMAP(0xc0,0xde,0xe0), CASELACE(0x0100,0x012e), @@ -257,12 +257,12 @@ static wchar_t __towcase(wchar_t wc, int lower) wint_t towupper(wint_t wc) { - return __towcase(wc, 0); + return (unsigned)wc < 128 ? toupper(wc) : __towcase(wc, 0); } wint_t towlower(wint_t wc) { - return __towcase(wc, 1); + return (unsigned)wc < 128 ? tolower(wc) : __towcase(wc, 1); } wint_t __towupper_l(wint_t c, locale_t l) |